<script>

    //对象拷贝
    let person={
        name:"张三",
        age:12
    }
    let person2=person
    let person3={...person}
    console.log(person2)
    console.log(person3)

    //对象合并
    let study={
        description:"老铁666"
    }
    let hh={...person,...study}
    console.log(hh)

</script>